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Transform.cs
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Transform.cs
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///
/// SharpWave - A refactored port of JWave
/// https://github.com/graetz23/JWave
///
/// MIT License
///
/// Copyright (c) 2020-2024 Christian ([email protected])
///
/// Permission is hereby granted, free of charge, to any person obtaining a copy
/// of this software and associated documentation files (the "Software"), to deal
/// in the Software without restriction, including without limitation the rights
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:
///
/// The above copyright notice and this permission notice shall be included in all
/// copies or substantial portions of the Software.
///
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
/// SOFTWARE.
///
using System;
namespace SharpWave
{
/// <summary>
/// Basic class for transforms.
/// </summary>
public class Transform
{
/// <summary>
/// Transform object of base class type; BasicTransfrom.
/// </summary>
protected Algorithm _algorithm;
///<summary>
/// Constructor; needs some object like DiscreteFourierTransform,
/// FastBasicTransform, WaveletPacketTransfom, ...
///</summary>
///<remarks>Christian ([email protected]) 19.05.2009 09:50:24</remarks>
public Transform( Algorithm basicTransform )
{
if(basicTransform == null ) {
throw new Types.Types_NotExistent( "Transform - " +
"Given transform object is null!" );
} // if
if(!(basicTransform is Algorithm)) {
throw new Types.Types_NotValid( "Transform - " +
"Given transform object is not correct type!" );
} // if
_algorithm = basicTransform;
} // method
///<summary>
/// Performs the forward transform by the specified BasicTransform object.
///</summary>
///<remarks>Christian ([email protected]) 10.02.2010 09:41:01</remarks>
///<returns>Coefficients of frequency or Hilbert domain</returns>
public double[ ] forward( double[ ] arrTime ) {
double[ ] arrHilb = null;
arrHilb = _algorithm.forward( arrTime );
return arrHilb;
} // forward
///<summary>
/// Performs the reverse transform by the specified BasicTransform object.
///</summary>
///<remarks>Christian ([email protected]) 10.02.2010 09:42:18</remarks>
///<returns>Coefficients of frequency or Hilbert domain</returns>
public double[ ] reverse( double[ ] arrHilb ) {
double[ ] arrTime = null;
arrTime = _algorithm.reverse( arrHilb );
return arrTime;
} // reverse
///<summary>
/// Performs a forward transform to a certain level of frequency or Hilbert
/// space by the specified BasicTransform object.
///</summary>
///<remarks>Christian ([email protected]) 22.03.2015 11:53:05</remarks>
///<returns>
/// Coefficients of frequency or Hilbert domain of certain level.
///</returns>
public double[ ] forward( double[ ] arrTime, int level ) {
double[ ] arrHilb = null;
arrHilb = _algorithm.forward( arrTime, level );
return arrHilb;
} // forward
///<summary>
/// Performs a reverse transform for a frequency or Hilbert space of a
/// certain level by the specified BasicTransform object; the level has to
/// match the supported coefficients in the array!.
///</summary>
///<remarks>Christian ([email protected]) 22.03.2015 11:54:59</remarks>
///<returns>
/// Reconstructed time domain for a certain level of frequencyor Hilbert
/// space.
///</returns>
public double[ ] reverse( double[ ] arrHilb, int level ) {
double[ ] arrTime = null;
arrTime = _algorithm.reverse( arrHilb, level );
return arrTime;
} // reverse
///<summary>
/// Performs the 2-D forward transform by the specified BasicTransform
/// object.
///</summary>
///<remarks>Christian ([email protected]) 10.02.2010 10:58:54</remarks>
///<returns>
/// Coefficients of 2-D frequency or Hilbert domain.
///</returns>
public double[ , ] forward( double[ , ] matrixTime ) {
double[ , ] matrixHilb = null;
matrixHilb = _algorithm.forward( matrixTime );
return matrixHilb;
} // forward
///<summary>
/// Performs the 2-D reverse transform by the specified BasicTransform
/// object.
///</summary>
///<remarks>Christian ([email protected]) 10.02.2010 10:59:32</remarks>
///<returns>
/// Coefficients of reconstructed 2-D time domain.
///</returns>
public double[ , ] reverse( double[ , ] matrixHilb ) {
double[ , ] matrixTime = null;
matrixTime = _algorithm.reverse( matrixHilb );
return matrixTime;
} // reverse
///<summary>
/// Performs the 2-D forward transform to a certain level by the specified
/// BasicTransform object .
///</summary>
///<remarks>Christian ([email protected]) 22.03.2015 14:40:54</remarks>
///<returns>
/// Coefficients of 2-D frequency or Hilbert domain of certain level.
///</returns>
public double[ , ] forward( double[ , ] matrixTime,
int levelM, int levelN ) {
double[ , ] matrixHilb = null;
matrixHilb = _algorithm.forward( matrixTime, levelM, levelN );
return matrixHilb;
} // forward
///<summary>
/// Performs the 2-D reverse transform from a certain level by the specified
/// BasicTransform object.
///</summary>
///<remarks>Christian ([email protected]) 22.03.2015 14:42:12</remarks>
///<returns>
/// Coefficients of reconstructed 2-D time domain.
///</returns>
public double[ , ] reverse( double[ , ] matrixHilb,
int levelM, int levelN ) {
double[ , ] matrixTime = null;
matrixTime = _algorithm.reverse( matrixHilb, levelM, levelN );
return matrixTime;
} // reverse
///<summary>
/// Performs the 3-D forward transform by the specified BasicTransform
/// object.
///</summary>
///<remarks>Christian ([email protected]) 10.07.2010 18:15:22</remarks>
///<returns>
/// Coefficients of 3-D frequency or Hilbert domain.
///</returns>
public double[ ,, ] forward( double[ ,, ] spaceTime ) {
double[ ,, ] spaceHilb = null;
spaceHilb = _algorithm.forward( spaceTime );
return spaceHilb;
} // forward
///<summary>
/// Performs the 3-D reverse transform by the specified BasicTransform
/// object.
///</summary>
///<remarks>Christian ([email protected]) 10.07.2010 18:15:33</remarks>
///<returns>
/// Coefficients of reconstructed 3-D time domain.
///</returns>
public double[ ,, ] reverse( double[ ,, ] spaceHilb ) {
double[ ,, ] spaceTime = null;
spaceTime = _algorithm.reverse( spaceHilb );
return spaceTime;
} // reverse
///<summary>
/// Performs the 3-D forward transform to a certain level by the specified
/// BasicTransform object.
/// levelP - certain level to stop transform for over rows
/// levelQ - certain level to stop transform for over columns
/// levelR - certain level to stop transform for over height
///</summary>
///<remarks>Christian ([email protected]) 22.03.2015 14:45:46</remarks>
///<returns>
/// Coefficients of 3-D frequency or Hilbert domain of a certain level.
///</returns>
public double[ ,, ] forward( double[ ,, ] spaceTime,
int levelP, int levelQ, int levelR ) {
double[ ,, ] spaceHilb = null;
spaceHilb = _algorithm.forward( spaceTime, levelP, levelQ, levelR );
return spaceHilb;
} // forward
///<summary>
/// Performs the 3-D reverse transform to a certain level by the specified
/// BasicTransform object.
/// levelP - certain level to start transform from over rows
/// levelQ - certain level to stop transform for over columns
/// levelR - certain level to start transform from over height
///</summary>
///<remarks>Christian ([email protected]) 22.03.2015 14:46:09</remarks>
///<returns>
/// Coefficients of reconstructed 3-D time domain.
///</returns>
public double[ ,, ] reverse( double[ ,, ] spaceHilb,
int levelP, int levelQ, int levelR ) {
double[ ,, ] spaceTime = null;
spaceTime = _algorithm.reverse( spaceHilb, levelP, levelQ, levelR );
return spaceTime;
} // reverse
} // class
} // namespace